Fuel pump ghetto help

[high mileage]

Hey there. I know this is ghetto AF but is it possible to remove the tank in a driveway? I can't seem to get the truck high enough to clear the tank and would rather not cut the floor to access it. If not, is there a good write-up on cutting the floor to access? Apologies in advance for ghetto ass question...

 

[strutaeng]

Yes, you should be able to get the tank down on your driveway. I did it on my 04 Suburban last Fall.

You'll have to use the taller jackstands. I think I also used some wood blocks on my jack to get the vehicle high enough. Guys here generally don't like to cut floorboards (I'm in that camp) so I can't comment on that...

Edit: I'm assuming that the fuel pump diagnostics have been performed, right? Nothing worse, than struggling to replace a fuel pump, cutting stuff up, spending $350 and 3 hours of your time, only to find out you have a different issue.

 

[high mileage]

Yes, you should be able to get the tank down on your driveway. I did it on my 04 Suburban last Fall.

You'll have to use the taller jackstands. I think I also used some wood blocks on my jack to get the vehicle high enough. Guys here generally don't like to cut floorboards (I'm in that camp) so I can't comment on that...

Edit: I'm assuming that the fuel pump diagnostics have been performed, right? Nothing worse, than struggling to replace a fuel pump, cutting stuff up, spending $350 and 3 hours of your time, only to find out you have a different issue.

It sometimes during a hot start cranks excessively. Hard to diagnose this intermittent issue, but the truck has 205k on it so I figured a fuel pump wasn't out of the question.

 

[Scrappycrow]

It sometimes during a hot start cranks excessively. Hard to diagnose this intermittent issue, but the truck has 205k on it so I figured a fuel pump wasn't out of the question.

Your suspicion isn't unreasonable, but you need to be monitoring fuel pressure while this is happening.

Have you tried removing the gas cap while this is occurring?

 

[Fless]

Long cranks could be a leaking purge valve or injector, or it may need a crankshaft position correlation relearn. I'd do more diagnostics before condemning the fuel pump.

Having said that, the tank can be removed in the driveway. I used 6-ton jackstands for my GMT800:

 

[high mileage]

Your suspicion isn't unreasonable, but you need to be monitoring fuel pressure while this is happening.

Have you tried removing the gas cap while this is occurring?

It happens then starts right up. Only happens every now and again. Super hard to catch. No codes, have not tried removing gas cap but it does set a large evap leak after refueling that goes away right afterwards.

 

[high mileage]

Long cranks could be a leaking purge valve or injector, or it may need a crankshaft position correlation relearn. I'd do more diagnostics before condemning the fuel pump.

Having said that, the tank can be removed in the driveway. I used 6-ton jackstands for my GMT800:

View attachment 487807

Excuse my ignorance, but is the tank in the back on your truck? It's on the driver's side on mine.

 

[Joseph Garcia]

Get yourself a mechanical pressure gauge with a hose at Harbor Freight and tape it to your windshield. This way, you will be able to monitor fuel pressure in real time. Personally, I do not think that the root cause of your issue is your fuel pump.

Do you have or have access to a quality bi-directional scanner? You should look for any stored trouble codes, as this will help point you in the correct direction for identifying the root cause of your issue.